What the original "Planet of the Apes" movie franchise never explained is how apes evolved to have speech, and humans devolved to being mute. The current franchise explains that quite nicely.
@LiberalLibrarian they heard the end of Starset's song devolution. /Nod.
@LiberalLibrarian actually my bad it's the bridge...
"One general law leading to the advancement of all organic beings is multiply
Therein, let the strongest live, and the weakest die
Eventually, a species can become complacent
At that point, a de-evolution can occur
A spiral downwards, signaling an end for that lifeform"
@LiberalLibrarian I do really enjoy the current "Apes" movies. They are very well done.